deoxyribonucleic acid, a self-replicating material.
DNA
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
CHROMOSOMES
a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
GENES
the study of heredity and the variation of inherited characteristics.
GENETICS
he process of developing or being developed.
DEVELOPMENT
the process of providing or obtaining the food necessary for health and growth.
NUTRITION
a person's mental or physical condition.
HEALTH
a condition of body and mind such as that which typically recurs for several hours every night.
SLEEP
a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule. DOUBLE
HELIX
the process of increasing in physical size.
GROWTH